B40
Header — not billableBlastomycosis
The ICD-10 code for blastomycosis is B40.
B40 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 7 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- B35Dermatophytosisnon-billable header
- B36Other superficial mycosesnon-billable header
- B37Candidiasisnon-billable header
- B38Coccidioidomycosisnon-billable header
- B39Histoplasmosisnon-billable header
- B41Paracoccidioidomycosisnon-billable header
- B42Sporotrichosisnon-billable header
- B43Chromomycosis and pheomycotic abscessnon-billable header
- B44Aspergillosisnon-billable header
- B45Cryptococcosisnon-billable header
- B46Zygomycosisnon-billable header
- B47Mycetomanon-billable header
- B48Other mycoses, not elsewhere classifiednon-billable header
- B49Unspecified mycosis
- B40Blastomycosisnon-billable header